That could deanonymize you. Lots of public places have cameras. On the other hand, have you ever tried creating a Google/YouTube or Facebook accout over Tor? T

That could deanonymize you. Lots of public places have cameras. On the other hand, have you ever tried creating a Google/YouTube or Facebook accout over Tor? They want SMS verification. So you have to buy a prepaid phone somewhere and that store will likely have cameras too. It's more difficult than you think.